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1. BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Numerator
Net income	$ 13,751,678	$ 13,197,019	$ 21,826,798	$ 19,663,983
Denominator
Basic: Weighted-average common shares outstanding during the period	46,793,791	46,008,102	46,793,791	46,007,611
Add: Dilutive effect of stock options	3,057	622,989	6,754	687,098
Diluted	46,796,848	46,631,091	46,800,545	46,685,709
Net income per share
Basic	$ 0.29	$ 0.29	$ 0.47	$ 0.43
Diluted	$ 0.29	$ 0.28	$ 0.47	$ 0.42

X

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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